Electron-Phonon Coupling in Boron-Doped Diamond Superconductor
| dc.creator | Xiang, H. J. | |
| dc.creator | Li, Zhenyu | |
| dc.creator | Yang, Jinlong | |
| dc.creator | Hou, J. G. | |
| dc.creator | Zhu, Qingshi | |
| dc.date | 2004-06-19 | |
| dc.date | 2004-10-07 | |
| dc.date.accessioned | 2026-07-07T02:58:43Z | |
| dc.date.available | 2026-07-07T02:58:43Z | |
| dc.description | The electronic structure, lattice dynamics, and electron-phonon coupling of the boron-doped diamond are investigated using the density functional supercell method. Our results indicate the boron-doped diamond is a phonon mediated superconductor, con rming previous theoretical conclusions deduced from the calculations employing the virtual crystal approximation. We show that the optical phonon modes involving B vibrations play an important role in the electron-phonon coupling. Di erent from previous theoretical results, our calculated electron-phonon coupling constant is 0.39 and the estimated superconducting transition temperature Tc is 4.4 K for the boron doped diamond with 2.78% boron content using the Coulomb pseudopotential μ*= 0.10, in excellent agreement with the experimental result. | |
| dc.description | 11 pages, 4 figures, Accepted by PRB | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0406446 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0406446 | |
| dc.identifier | Phys. Rev. B 70, 212504 (2004) | |
| dc.identifier | doi:10.1103/PhysRevB.70.212504 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/24217 | |
| dc.subject | Superconductivity | |
| dc.subject | Materials Science | |
| dc.title | Electron-Phonon Coupling in Boron-Doped Diamond Superconductor | |
| dc.type | text |